论文部分内容阅读
为了构建先进综合化航空电子系统的统一网络,提出了基于WDM(Wavelength Division Multiplexing)光网络的航电骨干网与外接边缘网互连方式的航电统一网络,并采用多跳ShuffleNet网络作为航电光骨干网的模型.针对综合化航电网络的可靠性问题,建立了基于航电任务与任务路径的可靠性建模方法,给出了保证任务执行成功的可靠度计算公式.以ShuffleNet航电光骨干网作为建模实例,通过对航电任务可靠度的分析计算,得到了系统任务的执行时间、网络规模、任务路径的跳数对系统可靠度影响最大,而同等条件下光纤链路的复用波长数对任务可靠度影响不明显的结论.仿真结果显示,基于任务的可靠性建模与计算方法可以为航电系统的可靠性分析提供理论基础.
In order to build a unified network of advanced integrated avionics systems, a unified avionics network based on the WDM (Wavelength Division Multiplexing) optical network with avionics backbone network and external edge network interconnection is proposed and the multi-hop ShuffleNet network is used as the avionics Backbone network model.According to the reliability problem of integrated avionics network, a reliability modeling method based on avionics task and task path is established, and the reliability formula for ensuring the successful execution of the task is given.With ShuffleNet avionics backbone As an example of network modeling, the network reliability is analyzed and calculated. The execution time, network size and number of hops of system tasks are the most influential factors on system reliability. However, under the same conditions, the reuse of optical fiber links The number of wavelengths has no obvious effect on task reliability.The simulation results show that the task-based reliability modeling and calculation method can provide theoretical basis for the reliability analysis of avionics system.